Key Highlights

● Materialise's revenue grew only slightly year over year.

● Full-year guidance was kept unchanged.

● The release gave no specific reason for the drop.

● Shares tumbled at a double-digit pace.

Materialise (NASDAQ:MTLS) plunged after the Belgian 3D-printing company reported third-quarter revenue that grew only modestly from a year earlier, one of the steepest declines among the day's movers. Revenue edged higher in the quarter and the company kept its full-year guidance unchanged, with the release itself giving no reason for the drop.

The shares tumbled at a double-digit pace by mid-afternoon. Investors in growth companies often look for acceleration, not just stability, and revenue rose only slightly in the quarter.

Reading the Quarter

Keeping full-year guidance unchanged can cut both ways. It signals that management is not seeing a sharp deterioration, but it also offers no upside surprise to offset a sluggish quarter. No source identified a specific cause for the selling.

Materialise, based in Leuven, Belgium, is one of the longest-standing companies in additive manufacturing, operating in three main areas: software used to design and manage 3D-printing operations, medical services such as patient-specific surgical guides, and manufacturing services that print parts for industrial customers.

A Tough Backdrop for Industrial Tech

3D-printing stocks have struggled in recent years as customers have taken longer to adopt the technology at scale, and higher interest rates have also made companies more cautious about capital investments in new equipment.

That backdrop did not improve the same day, as long-dated Treasury yields climbed after the Federal Reserve left its benchmark rate range unchanged, with market odds of a December hike rising afterward.